CN107834172A - A kind of new four-arm spiral antenna - Google Patents
A kind of new four-arm spiral antenna Download PDFInfo
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- CN107834172A CN107834172A CN201711043569.6A CN201711043569A CN107834172A CN 107834172 A CN107834172 A CN 107834172A CN 201711043569 A CN201711043569 A CN 201711043569A CN 107834172 A CN107834172 A CN 107834172A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A kind of new four-arm spiral antenna, including double frequency hurricane band (1), barron structure (2), spiral support medium (3), cable (4), width phase output circuit (5), for solve it is existing defend that logical terminal antenna can not realize beam position reversely in keep antenna polarization constant, and the lasting reception and transmitting to same signal of communication can be realized, it can adapt to defend the needs of the man-computer cooperation environment of logical terminal, solve the problems, such as that antenna does not have broad beam switching capability in the case where defending logical terminal environments, needs of the system to antenna multimode operation ability can also be met simultaneously, reliability is high, it is applied widely.
Description
Technical field
The present invention relates to a kind of new four-arm spiral antenna, belong to antenna technical field.
Background technology
With the continuous development that antenna technology, satellite ground are applied, the functional requirement that can be done to wireless system is more next
More, performance requirement is more and more harsher, and this requires the antenna in system or equipment to have the ability that can realize multiple functions
Or can according to corresponding to being realized different application performance indications, increase antenna function or performance only by increase antenna amount
It can not meet that integrated level requires the more and more various satellite ground equipment of more and more higher, function or mobile terminal, and system
To antenna multimode operation ability or needs it is urgent all the more, and develop multi-mode working antenna technology be enhancing antenna capabilities, should
To a kind of method of complex electromagnetic environment application challenge.
In order to meet the complicated and diversified application scenarios for defending logical terminal and communication Gesture, often require that antenna function is strong
Greatly, for application model flexibly, it is necessary to which antenna has communication beams switching capability, satisfaction defends the needs of logical terminal-pair man-computer cooperation.Defend
The man-computer cooperation application scenarios centre halfback of logical terminal leads to the change that terminal is pointed to and requires that antenna has broad beam switching capability, and keeps
The constant lasting reception and transmitting to realize to same signal of communication of antenna polarization, it is existing to defend logical terminal antenna because its realization is former
Reason is difficult to meet the application requirement.
The content of the invention
Present invention solves the technical problem that it is：A kind of overcome the deficiencies in the prior art, there is provided new quadrifilar helical list
First antenna, introduce and realize that four-point feed exports the barron structure of conversion to two-wire, and ensure that in antenna beam sensing reversely
To the lasting reception of same signal of communication and emissivities.
The object of the invention is achieved by the following technical programs：
A kind of new four-arm spiral antenna, including double frequency hurricane band, barron structure, spiral support medium, cable, width are mutually defeated
Go out circuit, wherein, the spiral support medium be support helix antenna overall structure, the barron structure be connecting cable with
The structure of double frequency hurricane band, the width phase output circuit input are connected with signal excitation port, and aerial signal is swashed by signal
Encourage port and send to width phase output circuit, width phase output circuit output end and be connected with cable one end, the cable is arranged at spiral
Inside Supporting Media, and spiral support medium is passed through along spiral support media center line, barron structure is arranged at spiral support Jie
Matter top, the cable other end are connected with the barron structure, and the double frequency hurricane band is arranged at spiral support media inside surface, bar
Human relations structure is connected by feeding spiral contact with double frequency hurricane band, and the aerial signal is transmitted by width phase output circuit by cable
To barron structure, double frequency hurricane band is sent to by feeding spiral node by barron structure and is sent out.
The double frequency hurricane band is made up of helical wire, and the spiral metal wire material is gold, and helical wire includes
Each and every one folded section more, change the signal radiation intensity received and dispatched in frequency range by adjusting broken line segment length and folding angles.
The folding segment number is 9.
The barron structure includes top disc, right-angled intersection micro-strip plate, and it is micro- that the top disc is installed on right-angled intersection
At the top of band plate, barron structure is connected by the feed spiral node on right-angled intersection micro-strip plate cross edge summit with double frequency hurricane band
Connect.
The feed spiral number of nodes of the barron structure is 4.
The top disc material is polytetrafluoroethylene (PTFE) double face copper, dielectric constant 2.65.
The right-angled intersection micro-strip plate material is the double face coppers of Rogers RT 6010, dielectric constant 10.2
The number of cables is 2, a diameter of 1.0mm.
Preferably, the width phase output circuit is 3dB bridge circuits.
Further, the spiral support medium is LDS materials, dielectric constant 4.35, Dielectric loss tangent 0.005.
The present invention compared with prior art the advantages of be：
(1) a kind of Novel spiral quadrifilar antenna provided by the invention, switching is encouraged to realize to spoke by application dual-port
The switching of beam position is penetrated, realizes the ability to antenna adaptation complex application context, the feeding classification and general four arms spiral
The bottom feedback ripple mode from the feedback of phase shift top or phase quadrature network of antenna is compared, and has taken into account that performance function is more excellent, structure complexity is fitted
The advantages of middle；
(2) present invention is based on itself Scheme Characteristics, the mixing feeding classification fed for a kind of feedback of balun top with phase-shift network,
The design complexities and can for having avoided phase-shift network enough realizes circular polarisation and directional diagram performance better than the feedback of traditional balun top, tool
Have antenna scheme is novel, working method is various, hardware implementation cost is low, function admirable, beneficial to batch production the features such as, have very
Strong practicality and technological competitiveness；
(3) important technical of the technical scheme provided by the invention as satellite communication terminal antenna, is applicable to
All kinds of handheld terminals are defended in logical Antenna Design, and provide multimode operation ability for terminal, realize defending under complex electromagnetic environment
The general character can realize that the new four-arm spiral antenna is cut by controlling the excitation to different port antenna is provided with main beam direction
The ability changed, and same circular polarization characteristics can be kept, New Satellite telecommunication satellite navigation terminal antenna, smart antenna with
And aspect has important application prospect；
(4) implementation of the four-arm spiral antenna for the barron structure combination 3dB bridge circuits that the present invention uses, is carried for terminal
For multimode operation ability, the demand of the antenna performance under complex electromagnetic environment or more application scenarios, new four arm are met
Helical antenna can be kept same by controlling the excitation to different port antenna is provided with the ability that main beam direction switches
One circular polarization characteristics, there is important application at New Satellite telecommunication satellite navigation terminal antenna, smart antenna and aspect
Prospect.
Brief description of the drawings
Fig. 1 is the new four-arm spiral antenna composition schematic diagram of the present invention；
Fig. 2 is new four-arm spiral antenna operation principle schematic diagram；
Fig. 3 is four-arm spiral antenna barron structure schematic diagram of the present invention；
Fig. 4 is barron structure operation principle schematic diagram；
Fig. 5 is that the present invention folds hurricane band and dielectric support winding schematic diagram；
Fig. 6 is new four-arm spiral antenna beam position switching schematic diagram；
Fig. 7 is the description for defending logical terminal plurality of application scenes setting；
Fig. 8 is the application scenarios explanation for defending logical terminal new antenna complex electromagnetic environment
Fig. 9 is four-arm spiral antenna radiator structure schematic diagram of the present invention；
Figure 10 is four-arm spiral antenna of the present invention and barron structure connection relationship diagram；
Embodiment
As shown in figure 1, a kind of new four-arm spiral antenna, including double frequency hurricane band 1, barron structure 2, spiral support medium
3rd, cable 4, width phase output circuit 5, the input of width phase output circuit 5 respectively with signal excitation port and signal load port
Connection, output end is connected with the one end of cable 4, and the cable 4 is arranged inside spiral support medium 3, and along spiral support medium 3
Center line passes through spiral support medium, and barron structure 2 is arranged at the top of spiral support medium 3, the other end of cable 4 and the balun
Structure 2 connects, and the double frequency hurricane band 1 is arranged at spiral support media inside surface, barron structure 2 by feed spiral contact with
Double frequency hurricane band is connected, and aerial signal is sent to width phase output circuit 5 by signal excitation port, then by width phase output circuit 5
Barron structure 2 is sent to by cable 4, double frequency hurricane band 1 is sent to and to outgoing by feeding spiral node from barron structure 2
Send.
Wherein, the barron structure 2 includes top disc 21, right-angled intersection micro-strip plate 22, and the double frequency hurricane band 1 is by spiral shell
Revolve metal wire composition, the microstrip line edge contact point and spiral metal linear contact lay that barron structure 2 passes through right-angled intersection micro-strip plate 22
To connect double frequency hurricane band 1.
In new four-arm spiral antenna provided by the invention, using new feeding classification, double frequency spiral band structure is day
The radiant body of line, radiated by adjusting broken line segment length in transmitting-receiving frequency range interior resonance；Barron structure hinders for a kind of parallel connection type
Anti-rotation parallel operation, realize and two pairs of differential feeds are carried out to four arm helixes, and using 2 coaxial lines as to external port, make balun knot
The input impedance of two input ports of structure is the half of the radiation impedance of four arm distributing points；Spiral support media implementation is to double frequency spiral
The support of band structure, and because its dielectric property is to realize antenna miniaturization；Two isometric Thin cables provide barron structure
With the connection of width phase output circuit, wherein width phase output circuit is 3dB bridge circuits；And 3dB bridge circuits are realized to barron structure
Two coaxial input ports carry out the feed of constant amplitude difference ± 90 °, so realize to the constant amplitudes of four arm helixes and phase for (0 °,
90 °, 180 °, 270 °) or (0 °, -90 °, -180 °, -270 °) the circular polarisation excitation being distributed.
It is made up of as shown in figure 9, double frequency folds spiral band structure 1 four identical helixes 11,12,13,14, and
Arranged along the axial-rotation of spiral support medium 3；
As shown in Figure 10, barron structure 2 is embedded in the top of spiral support medium 3, and with disk microstrip line edge and four
Helix 11,12,13,14 is connected, and spiral support medium 3 is that spiral band structure 1 provides attachment and support, typically passes through LDS works
Skill deposits helix 11 in four side metals of spiral support medium 3；And two cables 4 are thinner flexible radio frequency electricity
Cable, through the center of spiral support medium 3, one section of every cable is connected with the square microstrip line in the lower section of barron structure 2, and another
Work(is waited to divide output port to be connected with 3dB bridge circuits 5 in one end；3dB bridge circuits 5 are strip line chip, as the attached of the antenna
Device, realize that constant amplitude differs 90 ° of work(point output, be typically integrated on circuit board terminal.
Helix 11 is the hurricane band of more folded forms, changes four phases by changing width and the length of every section of metal tape
With the interstructural coupled relation of hurricane band, and then realize impedance of the four-arm spiral antenna in transmitting-receiving frequency range under differential feed
Match somebody with somebody.Helix 11 is embedded in the double frequency spiral band structure that spiral support medium 3 is provided under physical dimension miniaturization and is receiving and dispatching frequency range
The possibility of interior resonance, and then realize aerial radiation.U-shaped microstrip circuitry and output microstrip line in right-angled intersection micro-strip plate 22
Sheet material uses the thickness 0.508mm double face coppers of Rogers RT 6010, dielectric constant 10.2, and top disc 21 is still adopted
With thickness 0.60mm polytetrafluoroethylene (PTFE) double face copper, dielectric constant 2.65.Spiral support medium 3 is square hollow medium
Post, the high-k LDS materials (dielectric constant 4.35, Dielectric loss tangent 0.005) of use, it is easy to be based on LDS techniques
Production in enormous quantities manufacture.Two cables 41 extend downwardly with 42 along center of antenna axis, the output of its one end and barron structure
Microstrip line is connected, and the other end is then connected with two delivery outlets of 3dB bridge circuits 5.
As shown in Fig. 2 four arm helical structures are carried out two-by-two to the differential feed of spiral using barron structure, by four arms
Helical structure is divided into two groups, every group of spiral from mutually to spiral form, feed constant amplitude differs 180 °, and this two groups of spirals point
A port is not exported, i.e., row energization is entered to one of port, will carry out differential feed to corresponding spiral group.Two are held
Mouth carries out constant amplitude phase quadrature feed will enter row energization, formation circular polarisation wave beam to two groups of spirals simultaneously.So, in the antenna,
Apply the realization of 3dB bridge circuits to feed the constant amplitude phase quadrature of two groups of spirals in four arm helical structures, and apply novel barron knot
Structure realize to the differential feeds of two groups of spirals, reach to the constant amplitudes of four arm helixes and phase be (0 °, 90 °, 180 °, 270 °) or
The purpose of the circular polarisation four-point feed excitation of (0 °, -90 °, -180 °, -270 °) distribution.
As shown in figure 3, the novel barron structure used, is made up of two-sided U-shaped microstrip line and 4 points of output microstrip lines, wherein
4 points of output microstrip lines are presented as microstrip line edge contact point in barron structure, and their annexation is as shown in figure 4, pass through
U-shaped microstrip line realizes 180 ° of phase shifts in working frequency range, and every group of spiral (spiral 1 and spiral 3, spiral 2 and spiral 4) is carried out
Differential feed.
As shown in figure 5, the helical structure in new four-arm spiral antenna is arranged by four same-handed structure rotations, and it is every
Individual helical structure winds (square) dielectric rod for the spiral metal band of the more folded forms of different in width and formed, and more folding structures are not
The four arm helical structures only to intercouple provide two resonance points to cover satellite communication transmitting-receiving frequency range, also help realization
The miniaturization of helical structure, it is easy to integrated in terminal complete machine.
In the antenna, by the change for switching excitation port to realize to main beam direction, as shown in Figure 6.Work as signal
Excitation port 1, main beam direction is+Z-direction, and work as signal excitation port 2, and main beam direction is-Z-direction, and its pole
It is consistent to change characteristic, has met polarization decision criteriaWhen port 1 obtains power drive, four arm spiral knots
The phase distribution of structure distributing point is (0 °, 90 °, 180 °, 270 °), corresponding tenth of the twelve Earthly Branches vectorAnd when port 2 obtains
During to power drive, the phase distributions of four arm helical structure distributing points is (0 °, -90 °, -180 °, -270 °), corresponding tenth of the twelve Earthly Branches vectorAndSo after main beam direction switches, the polarization characteristic of its main beam keeps constant.
In the application of the terminal, it can be pointed to according to the different position of terminal or antenna, select different main beams to refer to
Always carry out to star communicate, as shown in fig. 7, and when the terminal be in urban environment apply when, then can refer to using the main beam
The occlusion effect of building Radio Link is tackled to the function of switching to star, selects the Radio Link of two secondary reflections, and is adopted
Wave beam after being pointed to reversely with antenna main beam carries out signal transmitting and received, as shown in Figure 8.
In specific implementation, the characteristic impedance of transmission line is arranged to 50 ohm in barron structure, and adjusts four arm spiral knots
Structure size makes its dual-frequency point resonance, and the radiation impedance of helical structure distributing point is 100 ohm under resonance point, and by with
Barron structure (2) connection of impedance parallel connection characteristic, realize four-arm spiral antenna radiant body (containing double frequency fold spiral band structure 1, bar
Human relations structure 2, spiral media support 3, two cables 4) input impedance be about 50 ohm, and transmitted in cable 4,3dB bridge circuits 5
The characteristic impedance of line also selects 50 ohm, in this way, that realizes whole antenna is matched with 50 ohm with terminal complete machine.
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
Claims (10)
- A kind of 1. new four-arm spiral antenna, it is characterised in that：Including double frequency hurricane band (1), barron structure (2), spiral support Medium (3), cable (4), width phase output circuit (5), wherein, the spiral support medium (3) is the entirety of support helix antenna Structure, the barron structure (2) are the structure of connecting cable (4) and double frequency hurricane band (1), and the width phase output circuit (5) is defeated Enter end to be connected with signal excitation port, aerial signal is sent to width phase output circuit (5) by signal excitation port, and width mutually exports Circuit (5) output end is connected with cable (4) one end, and it is internal that the cable (4) is arranged at spiral support medium (3), and along spiral Supporting Media (3) center line passes through spiral support medium (3), and barron structure (2) is arranged at spiral support medium (3) top, electricity Cable (4) other end is connected with the barron structure (2), and the double frequency hurricane band (1) is arranged at spiral support medium (3) appearance Face, barron structure (2) are connected by feeding spiral contact with double frequency hurricane band (1), and the aerial signal is by width phase output circuit (5) barron structure (2) is sent to by cable (4), double frequency hurricane band is sent to by feeding spiral node by barron structure (2) (1) and it is sent out.
- A kind of 2. new four-arm spiral antenna according to claim 1, it is characterised in that：The double frequency hurricane band is by spiral Metal wire forms, and the spiral metal wire material is gold, and helical wire includes each and every one more folded sections, by adjusting broken line segment length Degree and folding angles change the signal radiation intensity in transmitting-receiving frequency range.
- A kind of 3. new four-arm spiral antenna according to claim 2, it is characterised in that：The folding segment number is 9.
- A kind of 4. new four-arm spiral antenna according to claim 2, it is characterised in that：The barron structure (2) includes Top disc (21), right-angled intersection micro-strip plate (22), the top disc (21) are installed at the top of right-angled intersection micro-strip plate (22), Barron structure (2) is connected by the feed spiral node on right-angled intersection micro-strip plate (22) cross edge summit with double frequency hurricane band (1) Connect.
- A kind of 5. new four-arm spiral antenna according to claim 4, it is characterised in that：The feedback of the barron structure (2) Electric spiral number of nodes is 4.
- A kind of 6. new four-arm spiral antenna according to claim 4, it is characterised in that：Top disc (21) material For polytetrafluoroethylene (PTFE) double face copper, dielectric constant 2.65.
- A kind of 7. new four-arm spiral antenna according to claim 4, it is characterised in that：The right-angled intersection micro-strip plate (22) material is the double face coppers of Rogers RT 6010, dielectric constant 10.2.
- A kind of 8. new four-arm spiral antenna according to claim 1 or 2, it is characterised in that：Cable (4) quantity is 2, a diameter of 1.0mm.
- A kind of 9. new four-arm spiral antenna according to claim 1 or 2, it is characterised in that：The width phase output circuit (5) it is 3dB bridge circuits.
- A kind of 10. new four-arm spiral antenna according to claim 1 or 2, it is characterised in that：The spiral support medium (3) it is LDS materials, dielectric constant 4.35, Dielectric loss tangent 0.005.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043569.6A CN107834172B (en) | 2017-10-31 | 2017-10-31 | Novel four-arm helical antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043569.6A CN107834172B (en) | 2017-10-31 | 2017-10-31 | Novel four-arm helical antenna |
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| Publication Number | Publication Date |
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| CN107834172A true CN107834172A (en) | 2018-03-23 |
| CN107834172B CN107834172B (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711043569.6A Active CN107834172B (en) | 2017-10-31 | 2017-10-31 | Novel four-arm helical antenna |
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Cited By (4)
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|---|---|---|---|---|
| CN110212291A (en) * | 2019-07-17 | 2019-09-06 | 福州大学 | A kind of rectangular six arms Spiral slot antenna applied to satellite navigation terminal |
| CN110809836A (en) * | 2018-10-31 | 2020-02-18 | 深圳市大疆创新科技有限公司 | Circularly polarized antenna |
| CN113067127A (en) * | 2021-03-12 | 2021-07-02 | 中国电子科技集团公司第二十九研究所 | Satellite-borne helical antenna feed structure and helical antenna |
| CN114792888A (en) * | 2022-05-11 | 2022-07-26 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110809836A (en) * | 2018-10-31 | 2020-02-18 | 深圳市大疆创新科技有限公司 | Circularly polarized antenna |
| CN110212291A (en) * | 2019-07-17 | 2019-09-06 | 福州大学 | A kind of rectangular six arms Spiral slot antenna applied to satellite navigation terminal |
| CN113067127A (en) * | 2021-03-12 | 2021-07-02 | 中国电子科技集团公司第二十九研究所 | Satellite-borne helical antenna feed structure and helical antenna |
| CN113067127B (en) * | 2021-03-12 | 2022-04-19 | 中国电子科技集团公司第二十九研究所 | Satellite-borne helical antenna feed structure and helical antenna |
| CN114792888A (en) * | 2022-05-11 | 2022-07-26 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107834172B (en) | 2020-08-14 |
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